View attachment 551120 We haven't heard from Cantoo in almost 24 hrs. I hope he didn't chair a cherry.
Just waxing philosophical for a bit, I don't think most people understand the dynamics of a dutchman or what really causes a tree to chair.
So I have drawn two diagrams to try to explain the most common mistake that is made that adds to the chances of a tree chairing.
When we cut in our undercut, it is best to cut the angular cut first, as any overcut (kerf) will be left in the stump causing little or no effect. This makes it easier to cut an accurate horizontal cut without leaving a dutchman ( unintentional kerf) as shown in figure A.
In figure B an overcut is shown (unintentional). When the backcut is sawn in, that overcut closes first , causing tremendous tension and the possibility of a chair or in the least, difficult or impossible wedging.
Hope my diagram is self explanatory.
Any thoughts or additional explanations?